first post

.gitignore

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+*.o
+lib*so*
+.*.sw*
+~*
+tags

Makefile

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+all: libmlockall.so.0.0
+
+libmlockall.so.0.0: Makefile libmlockall.c
+	${CC} -fPIC -shared -Wl,-soname,libmlockall.so.0 -o libmlockall.so.0.0 -lc libmlockall.c  # -Wl,-export-dynamic
+	ln -fs libmlockall.so.0.0 libmlockall.so
+	ln -fs libmlockall.so.0.0 libmlockall.so.0
+clean:
+	rm -Rf *.o lib*.so*
+
+# for checkinstall
+install:
+	install lib*.so* /usr/lib/
+	install mlockall /usr/bin/

README

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+Lock all pages in memory for a process tree

libmlockall.c

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+#include <stdio.h>
+#include <sys/mman.h>
+
+void __attribute__((constructor)) init() {
+    if(mlockall(MCL_CURRENT|MCL_FUTURE)) {
+	perror("mlockall");
+    }
+}

mlockall

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+#!/bin/sh
+LD_PRELOAD="$LD_PRELOAD /usr/lib/libmlockall.so" "$@"